Reposted by Tim Demko
New video!
On the ground in Shenandoah National Park, I check out some structures built by the Civilian Conservation Corps that feature 𝘚𝘬𝘰𝘭𝘪𝘵𝘩𝘰𝘴-bearing blocks of Antietam Formation quartz sandstone (one of which shows spectacular deformation):
youtu.be/lKjQ9_B7u9A
⚒️
youtu.be
Skolithos trace fossils in Civilian Conservation Corps structures, Shenandoah National Park
YouTube video by Callan Bentley